Finding the Fourth Proportional to 88,974,276.80, 133,461,415.20 and 69,863,979.20
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Solution
The fourth proportional to 88,974,276.80, 133,461,415.20 and 69,863,979.20 is: 104,795,968.80
Step by Step Solution
- Step 1: Write the proportion equation
88,974,276.80 : 133,461,415.20 = 69,863,979.20 : x - Step 2: Convert to fraction form
88,974,276.80/133,461,415.20 = 69,863,979.20/x - Step 3: Cross multiply
88,974,276.80x = 133,461,415.20 × 69,863,979.20 - Step 4: Simplify right side
88,974,276.80x = 9,324,145,535,535,364 - Step 5: Solve for x
x = 9,324,145,535,535,364/88,974,276.80 - Step 6: Final answer
x = 104,795,968.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.